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1964 Map of Tin Cup Lake

Name: 1964 Topographic Map of Tin Cup Lake
Creator: U.S. Geological Survey
Published: 1978
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1978

About this map

Bitterroot National Forest and Nezperce National Forest converge at this high-altitude drainage along the Idaho-Montana border. Surveyed in the early 1960s, the map details a landscape defined by sharp divides and alpine water systems within the Selway Bitterroot Wilderness. The topography is centered on the Tin Cup Lake and the series of Triple Lakes, which feed into steep canyons carved by White Cap Creek and Tin Cup Creek.

Remote accessibility is a primary feature of this era, shown through a system of Pack Trails that navigate around Vance Mountain and past Patsy Ann Falls. The absence of roads underscores the area's designation as a primitive wilderness during the mid-20th century, capturing the hydrological network of Canyon Creek and Trapper Creek before modern environmental management shifts. This survey provides a record of the precise border between Idaho County and Ravalli County as it crosses the crest of the Bitterroot Range.